Match the following words to their descriptions.

Question

Column A
1. The smallest unit of matter
2. Two atoms held together by an ionic bond
3. Two atoms held together by a covalent bond
4. Si
5. NaCI
6. CO2

Column B.
A. Atom
B. Molecule
C. Compound

Answer 1

Column A:
1. The smallest unit of matter - A
2. Two atoms held together by an ionic bond - C
3. Two atoms held together by a covalent bond - B
4. Si - A
5. NaCI - C
6. CO2 - B